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Finding the Fourth Proportional to 7,338.72, 11,007.95 and 2,956.07

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Solution

The fourth proportional to 7,338.72, 11,007.95 and 2,956.07 is: 4,434.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,338.72 : 11,007.95 = 2,956.07 : x
  2. Step 2: Convert to fraction form
    7,338.72/11,007.95 = 2,956.07/x
  3. Step 3: Cross multiply
    7,338.72x = 11,007.95 × 2,956.07
  4. Step 4: Simplify right side
    7,338.72x = 32,540,283.50
  5. Step 5: Solve for x
    x = 32,540,283.50/7,338.72
  6. Step 6: Final answer
    x = 4,434.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.